sudo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
sudo wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo
sudo yum makecache

sudo wget -O install.sh http://download.bt.cn/install/install_6.0.sh && sh install.sh

sudo yum install htop
sudo yum install screen
sudo yum install git
